Powerful gales reaching velocities of up to 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and led agencies to cancel over 100 aircraft departures, based on local media.
The gales are impacting the complete South Island and lower areas of the North Island, per the national weather agency.
Officials in New Zealand have released rare red wind warnings - the highest alert level - in central regions encompassing these major districts.
Residents have been encouraged to avoid going outside, avoid travel, and prepare for further utility disruptions.
Broad Impact and Emergency Response
The power cut appears to be affecting residences predominantly in the South Island, though authorities report that energy was being restored progressively.
Regional news have reported that in various locations roofs have been ripped off houses, while trees and electricity poles have been toppled by the winds.
In Wellington, a man was killed after being impacted by a wooden fragment at a well-known hiking path on Tuesday.
Also in the capital, a woman was blown onto oncoming traffic on a road by a intensive burst, in a event that was recorded in a popular vehicle recording.
Flights entering and leaving the urban area have been suspended because of the winds, whereas some roads and libraries are also closed.
Simultaneously local leaders have issued a crisis declaration, to support recovery activities.
Labor Protests During Extreme Conditions
These intense gusts on Thursday come as numerous of school staff, physicians and civil servants take part in what has been called a "mega strike", demanding improved salaries and workplace environments.
However the severe conditions has pressured them to change various scheduled activities, with various open-air gatherings moved indoors or cancelled.
Like conditions are also sweeping Australia, bringing a heatwave to the nation's interior regions.
Agencies have announced flame prohibitions for fear of wildfires.